tileset set up not working properly

I am attempting to test out a tileset for a top down 2D game.

I have followed just about every tutorial out there, the tiles are not lining up correctly.

I sliced the sprites in the sprite editor correctly, once I've placed them in the tile palette they won't snap to the grid they were on in the sprite editor (i.e. you click on the square grid and you get a different tile than the one you clicked on.

When you attempt to paint using the tiles over on the tile map the highlighted square is a square above the one that your tile appears in.

I've tried changing scales and anchors which is what all of the current answers here on the unity answers page has suggested, none of this has been working.

Please help!